CN101772101A - Method for terminal to scan sub-base stations, wireless communication system, terminal and base station - Google Patents
Method for terminal to scan sub-base stations, wireless communication system, terminal and base station Download PDFInfo
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Abstract
The invention discloses a method for a terminal to scan sub-base stations, a wireless communication system, the terminal and a base station, wherein the method comprises that: the terminal scans the sub-base stations to determine one or more adjacent sub-base stations and/or acquires adjacent area information; and/or the terminal scans the sub-base stations to determine the sub-base stations which carry out switching or network access. By carrying out distributed hierarchical management on the adjacent area information, the invention avoids the process of scanning and accessing the dedicated sub-base stations which does not belong to the invention, or the sub-base stations which cannot support more users to access, or the nonadjacent substations, solves the problems of large scanning cost and long scanning time in the related technology, improves the switching performance of the wireless communication system and reduces the cost of the communication and the system.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of method, wireless communication system, terminal, and base station of terminal to scan sub-base stations.
Background technology
In wireless communication system, the base station is meant the equipment that service is provided for terminal, and it can carry out radio communication by electromagnetic wave and terminal.By using the base station, can provide wireless coverage for the terminal in certain geographic range in the wireless communication system, this geographic range can be described as the sub-district.
Usually, wireless communication system is in order to need to dispose the very big base station of coverage on a large scale for the user provides radio communication, and this base station is commonly referred to macro base station (MacroBS), and the sub-district of its covering is commonly referred to Hong Qu (Macro Cell).
Simultaneously, consider the different demands and different environments for use of user in the wireless communication system, need at this needs, adopt the base station that some coverages are little, transmitting power is lower for the user provides higher-quality radio communication service under some environment or scene.Usually, these small base stations comprise little base station (Micro BS), little base station (Pico BS) and sub-base stations (Femto BS, Femtocell BS or WiMAX Femtocell Access Point are called for short WFAP) (also can be called Home eNodeB, personal base station, femto base station, femto base station).By in wireless communication system, disposing sub-base stations, can provide at a high speed and/or proprietary radio communication service for indoor or hot zones (hot zone).The sub-district that sub-base stations is served is called young district (Femto Cell), the son district in, accept the terminal of service normally static or only with low-speed motion (for example, moving) with walking speed.
Generally, sub-base stations can be divided into open (Open Subscriber Group, be called for short OSG) and proprietary (Closed Subscriber Group, abbreviation CSG) two types (or being called networking type subscription type), in addition, can also define the third networking type between open and proprietary these two kinds of networking types, be called half proprietary (CSG-Open), in this case, proprietary (CSG) sub-base stations comprises proprietary (CSG-Closed) and half proprietary (CSG-Open) fully.Usually to allow to insert simultaneously the maximum number of user of sub-base stations be 6 to 8 to sub-base stations.Be no more than under the prerequisite of maximum number of user, open sub-base stations can insert Any user; And proprietary (when dividing two kinds of networking types) or proprietary fully (when dividing three kinds of networking types) sub-base stations are only opened proprietary user (CSG-member), and other user (non-CSG-member) outside the proprietary user is even can not be allowed to access proprietary (when dividing two kinds of networking types) or proprietary fully (when dividing three kinds of networking types) sub-base stations (unless in the urgent emergency of access call situation) in the area of coverage of proprietary sub-base stations; When dividing three kinds of networking types, half proprietary sub-base stations is preferably proprietary user's service, can be non-proprietary user's service when surplus resources.
In order to guarantee service quality, require that wireless communication system can provide incessantly for the terminal that moves, seamless connection ground communication service.That is to say, when terminal between Hong Qu and young district, young district and the young district when mobile, wireless communication system need provide Hong Qu and young district, young district and son the seamless switching between distinguishing for the user.Obviously not discovered in order guaranteeing to switch, need before switching, to give terminal, so that the adjacent opportunity of base station of terminal scanning to find to switch to the information (can be described as neighboring BS information) that provides serving base station that neighbor cell is provided for terminal by the user.
Owing to may exist number in grand district in ten even hundreds of a large amount of young district, if macro base station is all notified terminal with all son district information, can cause transmitting contain much information, the terminal scanning time is long and the big problem of scanning expense.For terminal, the time not only can scan in scanning and to allow the base station inserted, private base station under the nonterminal and the base station that can not support multiple terminals more to insert can be scanned equally, thereby have increased unnecessary scanning expense.In addition, in terminal initial network insertion or network were reentried, because terminal is not known sub-base stations which exists can insert on every side, the time of end-probing sub-base stations may be long; Also have when terminal is in emergency call situations, because this moment, all sub-base stations all were that terminal can insert, thereby terminal also needs to detect apace the sub-base stations of existence on every side, so that access network and/or allow the network positions terminal.
At the problem that the base station scans time is long in the correlation technique, expense is big, effective solution is not proposed as yet at present.
Summary of the invention
Consider the problem that the base station scans time is long in the correlation technique, expense is big and make the present invention that for this reason, main purpose of the present invention is to provide a kind of method, wireless communication system, terminal, and base station of terminal to scan sub-base stations.
To achieve these goals, according to an aspect of the present invention, provide a kind of method of terminal to scan sub-base stations.
Method according to terminal to scan sub-base stations of the present invention comprises: terminal to scan sub-base stations to be determining one or more adjacent sub-base stations, and/or obtains neighboring BS information; And/or terminal to scan sub-base stations is to determine to switch or the sub-base stations of network insertion.
Preferably, before terminal to scan sub-base stations, said method also comprises: the base station sends neighboring BS information to terminal, so that terminal is according to the neighboring BS information scan sub-base stations, wherein, neighboring BS information comprises the neighboring BS information of summary and/or concrete neighboring BS information, and the neighboring BS information of summary comprises appointed information and/or public information.
Preferably, appointed information comprises the division information of carrier frequency and/or leading division information, and wherein, division information is base station and the carrier frequency and/or the leading corresponding relation of various types of base stations and/or various networking types.
Preferably, leading division information comprises the division information of auxilliary targeting sequencing, and wherein, the division information of auxilliary targeting sequencing is represented the base station of dissimilar and/or networking type and the corresponding relation of auxilliary targeting sequencing.
Preferably, determine that the base station of various types of base stations and/or various networking types and the corresponding relation of auxilliary targeting sequencing comprise: allocate whole auxilliary targeting sequencings in advance according to the base station of various types of base stations and/or various networking types; Or, allocate auxilliary targeting sequencing partly in advance according to the base station of various types of base stations and/or various networking types.
Preferably, under the situation of the auxilliary targeting sequencing of allocating part according to the base station of various types of base stations and/or various networking types in advance, said method also comprises: various types of base stations and/or the base station of various networking types and the corresponding relation of auxilliary targeting sequencing of terminal by obtaining from the base station, and obtain the corresponding relation of the base station of whole auxilliary targeting sequencings and various types of base station and/or various networking types in conjunction with above-mentioned pre-assigned auxilliary targeting sequencing.
To achieve these goals, according to a further aspect in the invention, also provide a kind of terminal.
Terminal according to the present invention comprises: first scan module is used for according to the neighboring BS information scan sub-base stations of summary to determine one or more adjacent sub-base stations and/or to obtain neighboring BS information; Second scan module is used for according to concrete neighboring BS information scan sub-base stations to determine that terminal is switched or the sub-base stations of network insertion.
Preferably, further comprise: switch or the network insertion initiation module, be used for second scan module determined to switch or the situation of the sub-base stations of network insertion under initiate to switch or the network insertion flow process.
To achieve these goals, according to a further aspect in the invention, also provide a kind of base station.
Base station according to the present invention comprises: the neighboring BS information sending module is used on one's own initiative or sends neighboring BS information to terminal in response to the request message of terminal or triggering Network Based; Switch or the network insertion initiation module, be used for result according to the sub-base stations of switching of determining of terminal to scan sub-base stations or network insertion and report and determine that the terminal needs switch or the sub-base stations of network insertion and initiate to switch or the network insertion flow process.
Preferably, the neighboring BS information that the neighboring BS information sending module sends comprises the neighboring BS information of summary and/or concrete neighboring BS information, and the neighboring BS information of summary comprises appointed information and/or public information.
To achieve these goals, according to a further aspect in the invention, also provide a kind of wireless communication system.
Wireless telecommunication system according to the present invention comprises: at least one large coverage base station, be used to send its neighboring BS information summary and/or concrete of sub-base stations in overlay area separately, wherein, the large coverage base station comprise in macro base station, little base station and the little base station one of at least; At least one sub-base stations is used to send concrete neighboring BS information separately.
By technique scheme of the present invention, by to the distributed multi-zone supervision of neighboring BS information, avoid scanning and inserting non-its affiliated proprietary sub-base stations or can not support the sub-base stations of more users access or the processing of non-conterminous sub-base stations, solved the problem that the scanning expense is big in the correlation technique, the time is long, improve the wireless communication system performance of handoffs, reduced communication and overhead.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram of the wireless communication system of system according to the invention embodiment;
Fig. 2 is the block diagram of the structure example of system shown in Figure 1;
Fig. 3 is the simplified flow chart according to the terminal scanning method of the inventive method embodiment one;
Fig. 4 is the processing method simplified flow chart according to the neighboring BS information in the inventive method embodiment one terminal scanning method;
Fig. 5 is according to the flow chart that sends the mechanism one of neighboring BS information in the processing method of the neighboring BS information in the inventive method embodiment terminal scanning method;
Fig. 6 is according to the flow chart that sends the mechanism two of neighboring BS information in the processing method of the neighboring BS information in the inventive method embodiment terminal scanning method;
Fig. 7 is according to the flow chart that sends the mechanism three of neighboring BS information in the processing method of the neighboring BS information in the inventive method embodiment terminal scanning method;
Fig. 8 is according to first kind of schematic diagram of dividing type of the inventive method embodiment secondary synchronization sequences;
Fig. 9 is according to second kind of schematic diagram of dividing type of the inventive method embodiment secondary synchronization sequences;
Figure 10 is that the third divides the schematic diagram of type according to the inventive method embodiment secondary synchronization sequences;
Figure 11 is the flow chart according to the method for the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 12 is the flow chart according to the adjacent sub-base stations of terminal scanning in the young district in the method for the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 13 is the flow chart of the terminal to scan sub-base stations in the grand district in the method according to the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 14 is the terminal to scan sub-base stations in the grand district and seek the flow chart that assist the base station in the method according to the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 15 seeks the flow chart that assist the base station, the base station is directly responded according to terminal in the method for the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 16 seeks the flow chart that assist the base station, transmit the base station, adjacent sub-base stations is responded according to terminal in the method for the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 17 seeks the flow chart that assist the base station, transmit the base station, adjacent sub-base stations sends, transmit the base station again according to terminal in the method for the terminal to scan sub-base stations of the inventive method embodiment two;
Figure 18 is the block diagram according to the terminal of apparatus of the present invention embodiment one;
Figure 19 is the block diagram of the preferred structure of terminal shown in Figure 180;
Figure 20 is the block diagram according to the base station of apparatus of the present invention embodiment two.
Embodiment
Functional overview
Consider the problem that the base station scans time is long in the correlation technique, expense is big, the present invention proposes by a plurality of base stations in the system and carry out the scheme of the neighboring BS information processing of layering for terminal scanning, the amount of information of terminal each scanning when carrying out base station scans be can reduce, thereby delayed sweep and scanning expense reduced.
System embodiment
In the present embodiment, a kind of wireless communication system is provided, comprise at least one large coverage base station and at least one sub-base stations in this system, wherein, large coverage as described herein base station comprise in macro base station, little base station and the little base station one of at least.In the system according to present embodiment, its neighboring BS information of the summary of sub-base stations in overlay area separately can be handled in the large coverage base station; Sub-base stations then can be handled its concrete neighboring BS information separately.
Fig. 1 is according to one of the structure of the wireless communication system of present embodiment concrete example.
As shown in Figure 1, wireless communication system according to present embodiment can comprise large coverage base station 1 and 2, and sub-base stations 3,4,5 and 6, wherein, sub-base stations 3,4 is positioned at the coverage of large coverage base station 1, and sub-base stations 5,6 is positioned at the coverage of large coverage base station 2.In system shown in Figure 1, sub-base stations 3,4,5 and 6 can be handled concrete neighboring BS information separately, and the neighboring BS information of the summary of sub-base stations 3,4 is handled in large coverage base station 1, and the neighboring BS information of the summary of sub-base stations 5,6 is handled in large coverage base station 2.
When terminal is carried out base station scans, can at first obtain the neighboring BS information of summary from large coverage base station 1 or 2, terminal utilizes the neighboring BS information of summary to carry out the sub-base stations that initialization scan is found all and/or some types (Subscription Type) then, also can determine an adjacent sub-base stations earlier, as sub-base stations 3 or sub-base stations 5, afterwards again to sub-base stations 3,4 or sub-base stations 5,6 carry out specific aim scanning, thereby no matter there are what sub-base stations the accumulative total information overhead and the time overhead of scanning can both be limited in acceptable degree under the large coverage base station, significantly reduce the accumulative total information overhead and the time overhead that scan in the time of particularly under the large coverage base station, having more sub-base stations.
In this manual, initialization scan sub-base stations (being that scan sub-base stations is to determine one or more adjacent sub-base stations) is equal to the detection sub-base stations, and the existence of sub-base stations wherein may comprise the measurement to sub-base stations around promptly finding.We can claim that also initialization scan is blind sweeping.When carrying out the sub-base stations detection, terminal is to carry out according to finite information (for example neighboring BS information of the summary in this specification).
Fig. 2 is the schematic diagram according to the wireless communication system of present embodiment.In Fig. 2, as can be seen, comprise a plurality of processing sub-base stations of neighboring BS information (adjacent sub-base stations information) separately in the overlay area of the big base station of processing sub-base stations public information.
To describe in detail below said system to the processing of neighboring BS information so that the method for terminal scanning.And hereinafter the large coverage base station of Chu Xianing can comprise macro base station, little base station and little base station.
Method embodiment one
In the present embodiment, provide a kind of and handled neighboring BS information so that the method for terminal scanning is used for the neighboring BS information of wireless communication system sub-base stations is handled for terminal scanning.
Processing method according to the neighboring BS information of present embodiment comprises: each base station is handled with the corresponding neighboring BS information in overlay area separately and is used for terminal or other base station in the system, wherein, the neighboring BS information that handle each base station in each base station is the information (that is, information) relevant with the adjacent sub-base stations of this base station of the adjacent sub-base stations of this base station.Wherein, the terminal that the neighboring BS information that handle each base station can offer other base stations or carry out base station scans, and these neighboring BS information are relevant with the use terminal in the area of coverage, may be the neighboring BS information that terminal needs, and also may be the neighboring BS information useful for terminal.
The neighboring BS information that handle each base station can be relevant with the Move Mode and/or the use pattern of terminal in this base station coverage area, for example, can determine the neighboring BS information of each sub-base stations according to the relatively more fixing action route of user in the office areas.
Particularly, can handle the neighboring BS information of the summary that (also comprises in the footprint edges scope) in the coverage separately by each the large coverage base station in each base station, and handle near the coverage separately concrete neighboring BS information by each sub-base stations in each base station.
Wherein, the neighboring BS information of the summary that handle each large coverage base station comprise following one of at least: in the appointed information in this large coverage base station and its coverage between the sub-base stations, its coverage the common information of the public information of sub-base stations, the interior sub-base stations of its coverage and/or with its coverage in the relevant neighboring BS information of the behavior pattern (comprising Move Mode and/or use pattern) of terminal (that is, the terminal of this base station services the most normal use information or for these terminals Useful Information).
Wherein, public information or appointed information comprise the interior employed communication feature information of sub-base stations of the area of coverage of this large coverage base station, wherein, communication feature information can comprise following one of at least: carrier frequency information, leading (preamble, or be called synchronously SCH) characteristic information, carrier frequency distribution situation information, leading or synchronous distribution characteristics information.The use pattern of terminal can comprise following one of at least: terminal list (being the white table of sub-base stations or Femto-AAA), the terminal that the mandate correspondence relationship information of terminal and proprietary sub-base stations, proprietary sub-base stations mandate can insert can be authorized the proprietary sub-base stations tabulation of access.
For sub-base stations, the concrete neighboring BS information of its processing comprise following one of at least: the quantity information of the adjacent sub-base stations of this sub-base stations, the specifying information of the adjacent sub-base stations of some, wherein the specifying information of each adjacent sub-base stations comprises the carrier frequency that this sub-base stations uses, the identification number of this sub-base stations (BS ID and/or CSG ID), the preface information of this sub-base stations (Preamble Index, comprise that PA-Preamble Index master preface information and/or SA-Preamble Index assist preface information), the type information of this sub-base stations (being base station type BS Type and/or networking type subscription type), the state information of this sub-base stations, physics (the Physical of this sub-base stations, abbreviate PHY as) layer configuration information, the medium access control system of this sub-base stations (MediaAccess Control, abbreviate MAC as) layer configuration information (MAC layer version), the TDD/FDD sign, multi-carrier capability and configuration, base station title (can for the title of reading under the manual preference pattern of user), base station location indication (geographical position for example, and/or overlapping and/or adjacent Base Station Identification, and/or the position of use RSSI is with reference to information).Wherein, proprietary/open sign (situation of dividing three kinds of networking types) that type information can comprise proprietary sign or open sign (situation of dividing two kinds of networking types) or proprietary fully/half.Alternatively, type information can be included in the Base Station Identification number and/or in leading (be Base Station Identification number and/or leading corresponding with type), also can not be included in Base Station Identification number and leading in.State information comprises that can insert sign maybe can not insert sign (cell barinformation), and may further include low power consumpting state sign (Low-DutyOperational Mode, this sign can be used for identifying current base station and is in low power mode of operation or normal mode of operation).
Preferably, can come the neighboring BS information of handling is sorted in each base station according to the scan priority of the pairing base station of neighboring BS information of its processing, can be convenient to terminal like this scans the base station, preferably, scan priority can be determined according to the type of base station, user's behavior pattern (for example, user's networking user ' s subscription and/or possibility/probability that the base station is used by the user) and/or operator's policy.
Preferably, carry out neighboring BS information in each base station when handling, can be when netinit carry out the collection and the generation of neighboring BS information by backbone's (backbone) network and/or backhaul (backhaul) and/or eat dishes without rice or wine (airinterface) and/or relay base station (Relay Station) and/or other channel.
Alternatively, the mode that generates neighboring BS information can be one of following or its combination: generate neighboring BS information based on navigation system (for example, GPS (Global Position System) (Global Positioning System abbreviates GPS as)); Positioning function based on cable (Cable, for example, number of users word line (Digital Subscriber Line abbreviates DSL as)) generates neighboring BS information; Generate neighboring BS information based on scanning between the base station and/or measurement; Generate neighboring BS information based on the information interaction between the information interaction between terminal and base station and/or base station and base station (for example, the information interaction in the handoff procedure of base station); Measurement based on terminal generates neighboring BS information; From core net and/or other base stations and/or terminal obtain neighboring BS information.
On the basis of the collection of carrying out neighboring BS information and generation, the part base station or all base stations initiatively or in response to the neighboring BS information request that comes self terminal or set of terminal or other base station, by backbone network and/or backhaul and/or eat dishes without rice or wine and/or relay base station is carried out the transmission and/or the forwarding of neighboring BS information.When carrying out the neighboring BS information transmission, can adopt a kind of or its combination in broadcasting, multicast and the clean culture.
Carrying out after neighboring BS information sends, neighboring BS information that needs is sent according to the final recipient (comprising its geographical position and/or Move Mode and/or use pattern) of neighboring BS information and/or the scanning indication corresponding with neighboring BS information are optimized configuration.
In base station in response when the transmission of neighboring BS information is carried out in the neighboring BS information request, the request content that need be comprised according to the neighboring BS information request and/or the source (comprising its geographical position and/or Move Mode and/or use pattern) of request are optimized configuration (promptly to the neighboring BS information that needs send, customization), send the neighboring BS information of configuration afterwards again, can satisfy requesting party's requirement best with the neighboring BS information that guarantee to send, the expense when reducing transport overhead and recipient and using this information.Concrete, when all terminals when the base station in the area of coverage are broadcasted the neighboring BS information of sub-base stations, the neighboring BS information of the sub-base stations that only sends the neighboring BS information of summary and/or open (for example, macro base station is broadcasted the summary info and/or the specifying information of open all or part of sub-base stations); When the base station in the area of coverage terminal or during the neighboring BS information of set of terminal clean culture or multicast sub-base stations, only send the neighboring BS information of the sub-base stations that terminal or set of terminal can insert, comprise the neighboring BS information of open sub-base stations and to the neighboring BS information of the sub-base stations of terminal or set of terminal mandate (for example, the specifying information of the proprietary sub-base stations of macro base station clean culture is given terminal).
Come the neighboring BS information request of self terminal to transmit, issue the neighboring BS information of terminal by the base station and also may transmit through other base station through other base station; And the neighboring BS information that is sent by the base station can be customized at the terminal or the base station/group of base stations of final reception.
When carrying out the neighboring BS information transmission, the predetermined priority of the neighboring BS information that the base station can send according to its needs (for example, can be the type of base station) carry out the disposable transmission or the gradation transmission of neighboring BS information, wherein, when sending, gradation can preferentially send the high neighboring BS information of priority.
The neighboring BS information that the base station sends can be different because of the difference of send mode, for example, when the base station when a plurality of terminals are carried out the broadcasting of neighboring BS information, the neighboring BS information of broadcasting can be the neighboring BS information (for example, can be the common information that a plurality of sub-base stations had of the equal acquisition request of these terminals) that these terminals all need; And when the transmission of neighboring BS information was carried out to single terminal in the base station, the neighboring BS information of transmission can be the neighboring BS information of the sub-base stations that obtains of this terminal request, and the neighboring BS information that send this moment can be more concrete.
Preferably, the base station is that neighboring BS information that terminal sends does not comprise that status indicator is the information of the sub-base stations that can not insert, the type identification that does not also comprise the uncommitted access of terminal is the information of proprietary sub-base stations, promptly, for not having ability to continue to admit terminal (possibility is because reasons such as backhaul disconnection, system mistake, capacity/load limitations) or not allowing to admit the sub-base stations of terminal, to can not send its neighboring BS information, thereby further pare down expenses.
By above-mentioned processing, can solve the problem that the base station scans time is long in the correlation technique, expense is big, effectively reduce the amount of information of terminal each scanning when carrying out base station scans, thereby reduce delayed sweep and scanning expense.
Neighboring BS information is handled so that the method for terminal scanning according to present embodiment below in conjunction with the instantiation description.Specify, though mainly be to describe the terminal scanning method in the following method to switch to background, but the scan method of terminal initial network enter and/or network also similar in reentrying, main difference be terminal in initial network enters be according to before the neighboring BS information (for example division information of secondary synchronization sequences) of storage scan, in the Idle state, carry out then can using the various information of obtaining from the base station (comprising summary and/or concrete neighboring BS information) to scan when network is reentried during the gravity treatment base station or withdrawing from the Idle state.
Fig. 3 is the flow chart according to the terminal scanning method of present embodiment.As shown in Figure 3, can may further comprise the steps:
Below in conjunction with example 1 to example 8 processing shown in Figure 3 is described.
Fig. 4 is the flow chart of neighboring BS information being handled according in the method for present embodiment one.As shown in Figure 4, can may further comprise the steps:
Neighboring BS information is collected and generated to step 401, base station.
Below in conjunction with example 1 to example 8 processing shown in Figure 4 is described.
Example 1
Macro base station by core net (backbone network, backbone) or other modes collect the public information of the sub-base stations grand district in, comprise the carrier frequency information and the preface information of sub-base stations use.
Macro base station will generate public information from the information aggregating of sub-base stations, i.e. the distribution characteristics of the carrier frequency of sub-base stations use and leading distribution characteristics.For example, the distribution characteristics of the carrier frequency that uses of sub-base stations can be expressed as the number that whether (on for example identical or different with the used carrier frequency of the macro base station carrier frequency) exists sub-base stations and/or use the sub-base stations of a certain carrier frequency on all or a certain carrier frequency; The leading distribution characteristics that sub-base stations uses can be expressed as and be distributed in that (this interval may be corresponding to specific sub-base stations type between a certain leader, as fully proprietary/half proprietary/open or proprietary/open) the number of sub-base stations, and/or the interval range of the leading distribution of sub-base stations (the leading interval of using of the sub-base stations on all or particular type and/or the particular frequency carrier for example, this interval can be represented by diverse ways, such as representing by at least two in minimum preamble index, maximum preamble index, the maximum preamble index difference).Macro base station sends neighboring BS information (can pass through adjacent area message AAI_NBR-ADV or special-purpose sub-base stations message such as AAI_FEMTO-ADV) termly or based on terminal request (request message can use adjacent area request message AAI_NBR-REQ and/or scan request message AAI_SCN-REQ and/or scan report message AAI_SCN-REP and/or special-purpose sub-base stations information request message AAI_FEMTO-REQ) to terminal.The flow process that the base station sends three kinds of mechanism of neighboring BS information will be elaborated in below example 2 (Fig. 5), example 3 (Fig. 6) and the example 4 (Fig. 7).Terminal in grand district can utilize the information of obtaining subsequently to operate after receiving the public information that macro base station sends, such as carrying out initialization scan (that is, scan sub-base stations is to determine one or more adjacent sub-base stations and/or to obtain neighboring BS information) according to these information to find adjacent sub-base stations (is that sub-base stations is promptly surveyed in the scanning of purpose to find adjacent sub-base stations).
Fig. 5 is the flow chart that sends neighboring BS information according to base station in the neighboring BS information processing method of present embodiment based on terminal request.As shown in Figure 5, specifically comprise following processing:
Further specify processing shown in Figure 5 below in conjunction with example 2.
Example 2
In this example, terminal can or send neighboring BS information request (for example carrying corresponding indication by neighboring BS information request message AAI_NBR-REQ or by sub-base stations information request message AAI_FEMTO-REQ or by other message such as AAI_SCN-REP message) to serving base station (may be large coverage base stations such as macro base station, also may be sub-base stations) when inserting (comprising that switching is gone into, initial network enters, network is reentried) macro base station or other base stations in needs.For example, terminal can ask the public information of the sub-base stations in the grand district of macro base station clean culture to give terminal (for example macro base station is by the request of AAI_NBR-ADV or AAI_NBR-RSP or AAI_FEMTO-ADV or AAI_SCN-RSP message response terminal) when preparing to seek adjacent sub-base stations.May carry the neighboring BS information type of request in the neighboring BS information request, it may be the request public information, it may be the request common information, may be the concrete neighboring BS information of request, may be the information (when dividing two or three sub-base stations networking type) or the request information proprietary fully and/or half proprietary and/or open sub-base stations (when dividing three kinds of sub-base stations networking types) of the proprietary and/or open sub-base stations of request.Serving BS is terminal customization (promptly distributing rationally) neighboring BS information based on the indication of these requests.Serving BS also may generate the neighboring BS information of customization at concrete terminal (for example according to the geographical position of terminal and/or sub-base stations under it or proprietary member group), for example, utilizes the GPS navigation system to generate its adjacent sub-base stations tabulation for terminal.In addition, the geographical location information of terminal may be indicated in request message, perhaps indicates or directly pass through the LBS positioning function to obtain in the LBS report message.
Fig. 6 is the flow chart that sends neighboring BS information according to base station in the neighboring BS information processing method of present embodiment termly.As shown in Figure 6, specifically can may further comprise the steps:
Further specify processing shown in Figure 6 below in conjunction with example 3.
Example 3
The base station may be periodically or aperiodicity ground send neighboring BS information, for this reason, the base station need preestablish the time that sends neighboring BS information.This base station may be large coverage base stations such as macro base station, also may be sub-base stations.For example, macro base station may periodically be broadcasted the summary info of sub-base stations (for example by S-SFH IE or expanding system information (Extended systeminformation, or AAI_SCD system configuration describing message) the soft division information of transmission secondary synchronization sequences, and/or send the public information of sub-base stations by AAI_NBR-ADV and/or AAI_FEMTO-ADV), sub-base stations may periodically be broadcasted the specifying information (the being the sub-base stations neighboring BS information) system information of adjacent macro base station of AAI_NBR-ADV information broadcast and/or open sub-base stations (for example by) of adjacent sub-base stations, and that macro base station also may periodically be broadcasted is overlapping/specifying information (for example by AAI_NBR-ADV message) of the open sub-base stations of adjacent some or all of (quantity that may depend on open sub-base stations).The base station also may be terminal customization neighboring BS information based on the indication in the terminal request in the early time.For example, if the Leading End information requested is a public information, the base station may customize public information for terminal so.The base station also may generate the neighboring BS information of customization at concrete receiving terminal (for example according to the geographical position of terminal and/or sub-base stations under it or proprietary member group), for example, utilizes the GPS navigation system to generate its adjacent sub-base stations tabulation for terminal.In addition, the geographical location information of terminal may be indicated in request message, perhaps indicates or directly pass through the LBS positioning function to obtain in the LBS report message.
Fig. 7 is the flow chart that sends neighboring BS information according to the triggering Network Based of base station in the neighboring BS information processing method of present embodiment.As shown in Figure 7, specifically comprise following processing:
Further specify processing shown in Figure 5 below in conjunction with example 4.
Example 4
Base station large coverage base station and sub-base stations such as () macro base stations may triggering Network Based send neighboring BS information, for example after terminal enters base station service area, the base station may provide summary and/or customization and/or open neighboring BS information for terminal, wherein the neighboring BS information of summary comprises agreement and/or public information, and wherein Ding Zhi neighboring BS information comprises the sub-base stations of all and/or some openings and/or the neighboring BS information of proprietary sub-base stations.Appointed information may be all kinds and/or the base station of networking (Subscription) type and the correspondence relationship information between carrier frequency and/or leader, leading in other words division information (for example SA-Preamble partitioninginformation or SA-Preamble soft partitioning information), but concrete mode reference example 6.But public information reference example 1.The neighboring BS information of customization refers to the neighboring BS information that the base station generates at concrete terminal (for example relation and/or its geographical position and/or its terminal configuration under it), for example according to the information of the sub-base stations of the affiliated relation of terminal proprietary (comprise proprietary fully and/or half proprietary) under it provides it, geographical position according to terminal provides the information of the contiguous sub-base stations (comprising that open and/or proprietary) in its geographical position to it, according to the configuration of terminal to its provide the sub-base stations that is fit to terminal information (for example according to terminal be 16e or 16m terminal respectively to the relevant information of the base station of its 16e that provides support with support the relevant information of the base station of 16m: provide the information of the LZone of adjacent 16e base station and/or 16m base station to the 16e terminal, the information of the MZone of adjacent 16e base station and/or 16m base station be provided to the 16m terminal; Whether support according to terminal whether the multi-carrier capability decision provides the multi-carrier capability and/or the configuration information of adjacent base station to it for another example).Network-triggered also may be that other reasons triggers, for example 1) to add or withdrawed from new proprietary member's group (CSG) be that proprietary member organizes newly-increased or deleted the member to terminal, and/or 2) neighboring BS information has renewal, and/or 3) having the base station to add or leave the variation that service causes neighboring BS information, and/or 4) base station receives other network elements (adjacent base station for example, self-organizing SON server, Access Network gateway A SN-GW, sub-base stations gateway Femto-GW, certificate server AAA, sub-base stations certificate server WFAP-AAA, reasons such as message sub-base stations management server WFAP-Mgmt etc.) and/or signaling.
After terminal is obtained summary and/or customization and/or the open neighboring BS information that the base station sends, can initiate scanning surveying and/or to measure sub-base stations, so that prepare for the reentry of switchings/network according to these information.
Example 5
In this example, sub-base stations can be by backhaul (backhaul), eat dishes without rice or wine or other modes are collected the specifying information of the sub-base stations in the adjacent area, comprise the carrier frequency, Base Station Identification number of adjacent sub-base stations, leading and other features, also comprise the type and the state information of adjacent sub-base stations in addition.For example, sub-base stations can power on the back network when entering, and the adjacent sub-base stations signal of active scan is to generate neighboring BS information.
Sub-base stations can be optimized neighboring BS information according to user's behavior pattern (Move Mode and/or use pattern), to improve the usefulness of neighboring BS information.Suppose, there are some sub-base stations to be installed in each office in sowntown building, because the geographical position of sub-base stations and the restriction of their geographical environment, for example, can only lead to the B of office from the A of office, the user who is installed in the FBS_A of the A of office so just can only switch to the FBS_B that is installed in the B of office when leaving the A of office, the adjacent sub-base stations information that is to say FBS_A only need comprise the specifying information of FBS_B, the space that so just can reduce the neighboring BS information of storage, reduce the transport overhead of neighboring BS information, and can avoid the invalid sub-base stations of terminal scanning to save sweep time and expense.For C of office adjacent one another are and the A of office, even the C of office has installed FBS_C, but owing to do not have direct channel to link to each other between two offices, so the user can not directly switch to FBS_C from FBS_A, then the adjacent sub-base stations information of FBS_A does not need to comprise the specifying information of FBS_C yet.
Sub-base stations can send neighboring BS information to terminal termly and/or based on terminal request and/or triggering Network Based.Wherein the base station sends the flow process detailed description in example 2, example 3 and example 4 of three kinds of mechanism of neighboring BS information.Terminal just can utilize the information of obtaining subsequently to operate after receiving concrete sub-base stations information, for example, terminal can scan these adjacent sub-base stations targetedly to find potential switching machine meeting, and concrete scan method will be described in detail hereinafter.
Example 6
In this example, the sub-base stations in the macro base station area of coverage can be consulted and/or be distributed in based on the mode to the monitoring of macro base station signal on the carrier frequency of agreement by advance planning (for example by normal structure and/or operator's planning) and/or with macro base station or adopt leading or leading group that arranges.For example, proprietary sub-base stations and open sub-base stations (when dividing two classes or three class sub-base stations networking types) or proprietary fully, half proprietaryly may be distributed on the different carrier frequency with open sub-base stations (when dividing three class sub-base stations networking types), also may adopt different leading (synchronously) features.Sub-base stations in the grand district also can by geography information or according to certain policy distributed on different carrier frequency, perhaps be distributed in different leading characteristic areas.The purpose of this distribution may be in order to allow terminal can find at least one adjacent sub-base stations quickly when the scan sub-base stations, also may be in order to improve the communication quality of system, for example, reducing the interference of adjacent sub-base stations, also may be for the facility planned or composite factor etc.In this case, the appointed information of sub-base stations is that macro base station is collected in advance and/or set.Angle from system, carrier frequency and/or leading be ready-portioned by normal structure and/or operator, for example certain carrier frequency uses to macro base station, certain carrier frequency uses to sub-base stations, and for example the auxilliary targeting sequencing (being leading group or leading characteristic area) of a part is allocated to the sub-base stations use, and the auxilliary targeting sequencing of a part is allocated to macro base station and uses.Wherein, be allocated to leading can also further segmentation that sub-base stations uses, promptly be allocated to proprietary and open sub-base stations (when dividing two classes or three class sub-base stations networking types) or proprietary fully, half proprietaryly use with open sub-base stations (when dividing three class sub-base stations networking types).Can also fix certain auxilliary targeting sequencing in advance and use for certain class or some class base station in standard, for example keep for macro base station to use the auxilliary targeting sequencing of a part, remaining auxilliary targeting sequencing is further divided by operator again, and concrete mode is seen below the explanation of literary composition.Macro base station may (base station sends the mode of appointed information referring to example 2,3,4 by broadcasting or otherwise, do not repeat them here) inform the terminal in the grand district, the carrier frequency feature of the agreement that sub-base stations uses and/or the leading feature of agreement (i.e. the division information of auxilliary targeting sequencing).For example, can when switching to macro base station, terminal give terminal by the appointed information of macro base station clean culture sub-base stations.Auxilliary targeting sequencing division information has been represented the base station of dissimilar and/or networking type and the corresponding relation of auxilliary targeting sequencing.When the auxilliary targeting sequencing of a part in advance during fixed allocation, then the division information of the auxilliary targeting sequencing of broadcasting and/or clean culture only need comprise the division information of remaining auxilliary targeting sequencing, be soft division information (SA-Preamble Soft Partitioning Information), see below the explanation of literary composition.Terminal just can subsequently be operated after receiving this appointed information, for example, scan according to these information, thereby find the sub-base stations of adjacent all and/or some type, and this information can also be used to discern the type (promptly whether sub-base stations) of base station and/or the networking type of sub-base stations (proprietary fully/half proprietary/open).
Usually, such as the division information of secondary synchronization sequences and/or the division information of carrier frequency (distributed intelligence) is to be unified in the network of same operator, that is to say that the appointed information that the base station provides is the neighboring BS information of summary, also be equal to the summary info of whole Access Network.And, result as the network planning of operator, appointed information can often not change usually, thereby the term of validity of appointed information all long usually (such as reaching more than 1 day), so terminal does not need often to upgrade this information after obtaining appointed information, and can use (for example preserving before the shutdown) appointed information of obtaining in advance in a long time, for scanning (detection) and/or identification base station.
In urgent access situation, all base stations are its type and/or networking type no matter, all can insert for terminal.In this case, because the quantity of sub-base stations may be too many, thereby sub-base stations can use appointed information (for example soft division information of auxilliary targeting sequencing) to carry out sub-base stations initialization scan (promptly surveying), to find adjacent sub-base stations, save empty overhead and/or time simultaneously.
Under the manual selection base station mode of terminal, terminal can utilize appointed information (for example soft division information of auxilliary targeting sequencing) that sub-base stations is surveyed, to find the sub-base stations of all and/or specific networking type, the base station that terminal detects in conjunction with white table identification is (promptly whether corresponding C SG member) under the affiliated also right and wrong, the information that shows the base station detect then on user interface selects network to enter/reentry/base station of position renewal/switching for the user.
Keeping when terminal under the critical situation of connection and (do not finding candidate base station behind the proprietary sub-base stations under for example terminal is being searched for, open sub-base stations, the macro base station), half proprietary sub-base stations under the nonterminal also can insert it.Therefore, terminal can be surveyed (scanning) such base station: terminal uses appointed information to scan such base station, for example according to the division information (such as soft division information SA-Preamble partitioninginformation) of secondary synchronization sequences, terminal know is allocated to the interval range (for example the secondary synchronization sequences index from 225 to 240) of the secondary synchronization sequences of half proprietary sub-base stations, and terminal can be at this interval range detection signal to find half proprietary sub-base stations thus.If detected half proprietary sub-base stations, then terminal is kept at needs under the critical situation of connection, promptly switch to half proprietary sub-base stations.
In initial network enters, if terminal does not have the soft division information of available secondary synchronization sequences, then can only use eventually some in standard and/or reserve in the terminal/division information set, according to these information terminals can identify in standard and/or reserve in the terminal/some base station types of setting.For example, use for macro base station or sub-base stations other base stations in addition if stipulated one section continuous secondary synchronization sequences in standard and/or in the terminal, if then terminal detects the sequence that drops on this section secondary synchronization sequences interval, then can identify this section sequence is that use macro base station or sub-base stations other base stations in addition, so, terminal (preferentially) select these base stations (may be because the base station type coverage of these reservations is big and/or the position of the superframe head of the base station type of these reservations be known (position of considering the main relatively synchronizing sequence of superframe head is with the relevant situation of base station type, for example the superframe head of macro base station in the former frame of main synchronizing sequence place frame and first or second frame of superframe head after the frame of main synchronizing sequence place of sub-base stations)).In other words, in initial network enters and terminal do not have under the situation of soft division information of available secondary synchronization sequences, that terminal (preferentially) is selected is known (in standard and/or reserve in the terminal/set) base station type, can optimize initial access process, reduce expense.
The division information of secondary synchronization sequences can be used hard division information or soft division information dual mode, wherein, the difference of hard division information and soft division information is, that hard division information provides is whole/division information of complete secondary synchronization sequences, soft division information then with standard in and/or stipulate in the terminal/division information of the secondary synchronization sequences reserved combines the division information that just constitutes whole/complete secondary synchronization sequences.That is to say that secondary synchronization sequences is not reserved/set to hard division information (or all division information) in standard and/or in the terminal, and terminal is known whole secondary synchronization sequences and how to be divided by obtaining hard division information; Soft division information (or part division information) is reservation/setting section or whole secondary synchronization sequences in standard and/or in the terminal, and terminal combines by the division information that will preset and the soft division information of obtaining from the base station then can obtain the whole secondary synchronization sequences and the corresponding relation of base station type.
Soft division information also has three types, first type (2 kinds of examples as shown in Figure 6): a part of secondary synchronization sequences is kept for certain in standard and/or in the terminal/use of some type (comprising networking type subscription type) base station, just need not to represent the corresponding relation of this part secondary synchronization sequences in idle message; Second type (4 kinds of examples as shown in Figure 7): all or part of secondary synchronization sequences keeps for some type (comprising networking type subscription type) base station to use in standard and/or in the terminal, the corresponding relation (for example one section continuous sequence of regulation is given macro base station, proprietary fully/partly proprietary/open sub-base stations use in standard, and needs 2 bits to represent that further the continuous sequence of this section specifically is be allocated to above four kinds of base stations any in idle message) that in idle message, need further represent the refinement of all secondary synchronization sequences; The third type (8 kinds of examples as shown in Figure 8) is the combination of first and second type, be that a part of secondary synchronization sequences presets, need not to represent with eating dishes without rice or wine again, and all or part of of remaining secondary synchronization sequences keeps for some type (comprising networking type subscriptiontype) base station to use in standard and/or in the terminal, needs further whole refinement corresponding relation of the remaining secondary synchronization sequences of expression in idle message.
Division information (no matter hard division information still is various soft division information) can be represented by the form of secondary synchronization sequences cell block, for example for 256 secondary synchronization sequences (its index from 0 to 255), can stipulate (n=4 for example with n, 8,16,32 etc.) bar continuous or equally spaced secondary synchronization sequences be the minimum unit of secondary synchronization sequences cell block, 256 secondary synchronization sequences can be converted into 256/n based on this and (work as n=4,256/n equaled 64 respectively in 8,16,32 o'clock, 32,16,8) individual cell block is so division information is represented the mapping relations of 256/n cell block and base station type.For soft division information, shoot off m reservation/setting again and the cell block that need not to represent again, then soft division information is represented the mapping relations of (256/n-m) individual cell block and base station type.
The mapping relations of K (K=256/n-m is for hard division information m=0 then, for soft division information m＞=0) individual cell block and base station type have following two kinds of expression modes.Suppose that base station type comprises macro, micro, pico, femto (CSG-Closed/CSG-Open/OSG), relay.First kind of expression mode, division information is represented the pairing base station type of each cell block of K cell block, in the mapping relations of each cell block of expression and base station type, can be one to one and/or the relation of one-to-many: be exactly a cell block or corresponding base station type of bit value (for example cell block or bit value such as the corresponding macro base station of 0b00 one to one, cell block or bit value such as the corresponding proprietary sub-base stations fully of 0b01, the sub-base stations that cell block or bit value such as 0b10 corresponding half are proprietary, the corresponding open sub-base stations of cell block or bit value such as 0b11), one-to-many is exactly the corresponding more than base station type of a cell block or bit value (for example cell block or bit value such as the corresponding macro base station of 0b00/little base station/little base station, (proprietary fully with half proprietary) sub-base stations that cell block or bit value such as 0b01 are corresponding proprietary).The required expense of division information can be by calculating, such as the hypothesis base station type needs 3 bits, then the division information of first kind of mode needs the expense of 3K bit, and if base station type needs 2 bits, then the division information of first kind of mode only needs the expense of 2K bit; Second kind of expression mode, division information is represented the pairing cell block of each base station type (interval), there are three kinds of method for expressing in expression cell block interval, and promptly two of the three by minimum unit piece (start element piece), largest unit piece (termination cell block), cell block length represent.Especially, when cell block is interval when adding that with cell block length minimum unit piece (perhaps largest unit piece) is represented, when cell block length is 0, then minimum unit piece (perhaps largest unit piece) can be represented, pares down expenses with this.
Example 7
In this example, terminal is obtained from one or more base stations with relevant common information of sub-base stations (referring to example 1) and appointed information (referring to example 6), according to this different information sub-base stations is scanned (detection) and/or identification then, mode repeats no more in detail.
Example 8
In this example, macro base station is collected the common information (representative or typical information) of the sub-base stations in the grand district by core net (backbone) or other modes, for example, the specifying information of typical sub-base stations, comprise the carrier frequency of its use, leading and other features, may also comprise the type and the state information of sub-base stations in addition.Terminal can the representative or the typical information of the sub-base stations in the grand district of request macro base station clean culture be given terminal when inserting macro base station or in needs.Macro base station can generate and send the representative or the typical information of customization for terminal or set of terminal clean culture or multicast representative or typical information the time.These representatives or typical information may be by macro base station by the priority queuings.Macro base station also can periodically be broadcasted the representative or the typical information of the sub-base stations in the grand district.Terminal can utilize the information of obtaining subsequently to operate after receiving representative that macro base station sends or typical information, for example, can scan typical sub-base stations according to these.
Example 9
In this example, sub-base stations can by with the most frequently used next of the mutual collection terminal of terminal and/or near sub-base stations and/or the specifying information of follow-up sub-base stations, comprise the carrier frequency, Base Station Identification number of adjacent sub-base stations, leading and other features, also comprise the type and the state information of adjacent sub-base stations in addition.Adjacent sub-base stations may be in same grand district, also may be in adjacent different grand district.Sub-base stations may be optimized neighboring BS information.For example, sub-base stations can carry out priority queueing to next sub-base stations according to the possibility of the most normal use.Sub-base stations is optimized neighboring BS information according to user's behavior pattern also can be in example 4, to improve the usefulness of neighboring BS information.
Terminal or set of terminal can ask sub-base stations to send the specifying information of next the most frequently used sub-base stations by clean culture or multicast mode.Sub-base stations can also and send the specifying information of next the most frequently used sub-base stations for the customization of terminal or set of terminal.In addition, sub-base stations also can notify area of coverage interior terminal next the most frequently used sub-base stations information by the mode of broadcasting.Terminal just can utilize the information of obtaining subsequently to operate after receiving the sub-base stations information that sub-base stations sends, and for example, scans these adjacent sub-base stations targetedly to find potential switching machine meeting.
Example 10
In this example, macro base station can be by also having other base stations alternant way to collect the information of the most frequently used adjacent sub-base stations of terminals with terminal, and for example, the carrier frequency of its use, leading and other features may also comprise the type and the state information of sub-base stations in addition.Adjacent sub-base stations may be in this grand district, also may be in adjacent grand district coverage.Macro base station may be termly or based on the message optimisation neighboring BS information.For example, macro base station can carry out priority queueing to next sub-base stations according to the possibility of the most normal use.Macro base station also can adopt the scheme described in the example 4,, optimizes neighboring BS information according to user's behavior pattern, to improve the usefulness of neighboring BS information that is.
Terminal or set of terminal can be asked the information of the most frequently used sub-base stations in macro base station clean culture or the grand district of multicast when inserting macro base station or in needs.Macro base station can also and send the information of the most frequently used sub-base stations for the customization of terminal or set of terminal.The information of these the most frequently used sub-base stations is lined up by priority by macro base station.Terminal can utilize the information of obtaining subsequently to operate after receiving the information of the most frequently used sub-base stations that macro base station sends, for example, and according to these scan sub-base stations.
Method embodiment two
In the present embodiment, provide a kind of method of terminal to scan sub-base stations, be used for the neighboring BS information that adopts said method to handle is scanned, that is, layering (step by step) scanning has been carried out in the base station based on system shown in Figure 1.
Figure 11 is the flow chart according to the method for the terminal to scan sub-base stations of the embodiment of the invention, need to prove, the step of Miao Shuing can be carried out in the computer system such as a set of computer-executable instructions in the method, and, though figure 11 illustrates logical order, but in some cases, can carry out step shown or that describe with the order that is different from herein.As shown in figure 11, this method can may further comprise the steps 1102 and step 1104.
Each treatment step as shown in figure 11 is specific as follows:
Wherein, terminal can also be according to its neighboring BS information that obtains in advance from serving BS to determine adjacent alternative sub-base stations.
As can be seen, by above-mentioned processing, terminal can have levels and scan (step), and can be that the scanning of the latter half is prepared by the scanning of previous stage.When stating scan process in realization, can be selectively or autotelic scanning, that is, can select to carry out initialization scan or specific aim scanning is carried out in selection according to current state.For example, determined under the situation of candidate BS initialization scan that then can execution in step S602 for predetermined sub-base stations (being known adjacent sub-base stations) or terminal at alternative sub-base stations.After terminal has been carried out initialization scan or need not to carry out under the situation of initialization scan, when terminal need be searched the chance that switches to adjacent sub-base stations, just can select to carry out specific aim scanning.
When terminal is carried out initialization scan and/or specific aim scanning, be positioned in terminal under the situation in grand district, terminal is carried out initialization scan (unless macro base station can be provided as the concrete neighboring BS information that terminal customizes based on navigation system or function) earlier, and in the laggard capable specific aim scanning of initialization scan success, wherein, the neighboring BS information that macro base station provides in the grand district can be the neighboring BS information of summary; Be positioned in terminal under the situation in young district, terminal is directly carried out specific aim scanning, and wherein, the neighboring BS information that macro base station provides in the young district can be concrete neighboring BS information.
That is to say, be under the situation of macro base station at serving BS, and serving BS can be broadcasted neighboring BS information (the also for example specifying information of open sub-base stations of possibility broadcast segment) and/or the clean culture or the concrete neighboring BS information of multicast of summary; At serving BS is under the situation of sub-base stations, and sub-base stations can broadcasting, multicast or the concrete neighboring BS information of clean culture.
Preferably, the base station be operation that terminal sends the neighboring BS information of sub-base stations comprise following one of at least: the base station when netinit by backbone network and/or backhaul and/or eat dishes without rice or wine and/or neighboring BS information is collected and generated to relay base station; The base station generates neighboring BS information based on the positioning function of navigation system and/or cable; The base station is based on the scanning between the base station and/or measure the generation neighboring BS information; The base station generates neighboring BS information based on the information interaction between the information interaction between terminal and base station and/or base station and base station; The base station from core net and/or other base stations and/or terminal obtain and generate neighboring BS information.
And when terminal was carried out the scanning of sub-base stations, terminal can scan the large coverage base station during sub-base stations is scanned and/or intermittently, and here, the large coverage base station can comprise macro base station, little base station and little base station.
Particularly, terminal to scan sub-base stations is to determine to switch or the operation of the sub-base stations of network insertion can comprise: terminal according to concrete neighboring BS information scan sub-base stations to determine to switch or the sub-base stations of network insertion, wherein, concrete neighboring BS information comprises the concrete neighboring BS information of concrete neighboring BS information that previous stage, scanning was obtained or predetermined adjacent sub-base stations.
Wherein, the neighboring BS information of summary can comprise following one of at least: (the division information of secondary synchronization sequences for example of the appointed information in serving BS and its coverage between all or part of sub-base stations, referring to example 6), the common information of all or part of sub-base stations in the public information (referring to example 1), serving BS coverage of all or part of sub-base stations in the serving BS coverage, wherein, the part sub-base stations comprises the sub-base stations adjacent with terminal.Here, public information or appointed information can comprise the employed communication feature information of sub-base stations in the serving BS area of coverage, wherein, communication feature information comprise following one of at least: the Cell Identity CI of carrier frequency information, preface information, carrier frequency distribution situation information, leading distribution characteristics information, reservation; The neighboring BS information relevant with the behavior pattern of terminal in the serving BS coverage can comprise the mandate correspondence relationship information of terminal and proprietary sub-base stations.
Preferably, the base station can further send neighboring BS information according to the behavior pattern of terminal and/or the adjacency in geographical position, and wherein, the behavior pattern of terminal comprises Move Mode and/or use pattern.Particularly, at serving BS is under the situation of large coverage base station, the Move Mode of terminal comprises: terminal moves/switches to the probability of each adjacent sub-base stations from serving BS, and/or terminal moves/switches to the probability of adjacent open sub-base stations from serving BS, and/or the terminal that obtains insertion authority moves/switch to the probability of adjacent proprietary sub-base stations from serving BS.
Before the base station sends the neighboring BS information of distributing rationally according to the adjacency in the geographical position of the behavior pattern of one or more terminals and/or terminal, the base station can from terminal and/or adjacent base station and/or core net collect that terminal moves and/or the history information that switches to generate the behavior pattern information of terminal.
In addition, above-mentioned concrete neighboring BS information can comprise following one of at least: the quantity information of the adjacent sub-base stations of serving BS, the specifying information of the adjacent sub-base stations of some (for example, can be with listings format, promptly be called Neighboring Cell List), wherein the specifying information of each adjacent sub-base stations comprises the carrier frequency that this sub-base stations uses, the identification number of this sub-base stations (BS ID and/or CSG ID), the preface information of this sub-base stations (Preamble Index, comprise that PA-PreambleIndex master's preface information and/or SA-Preamble Index assist preface information), the type information of this sub-base stations (being base station type BS Type and/or networking type subscription type), the state information of this sub-base stations, physics (the Physical of this sub-base stations, abbreviate PHY as) layer configuration information, the medium access control of this sub-base stations (Media Access Control, abbreviate MAC as) layer configuration information (MAC layer version), the TDD/FDD sign, multi-carrier capability and configuration, base station title (can for the title of reading under the manual preference pattern of user), base station location indication (geographical position for example, and/or overlapping and/or adjacent Base Station Identification, and/or the position of use RSSI is with reference to information).Wherein, type information comprise proprietary sign or open sign (situations of dividing two kinds of networking types) or proprietary fully/half proprietary/open sign (situations of dividing three kinds of networking types), perhaps this is identified in the Base Station Identification number and/or in leading and includes (be Base Station Identification number and/or leading corresponding with type); State information comprises that can insert sign maybe can not insert sign (cell bar information), and/or comprise that low power consumpting state identifies (Low-Duty Operational Mode, this sign can be used for identifying current base station and is in low power mode of operation or normal mode of operation).Preferably, the form of concrete neighboring BS information can be shown in table 1, table 2, table 3, table 4, table 5.
Table 1
| Syntax (structure) | Notes (note) |
| ???Type | Indicate the type of this message |
| ???... |
| Syntax (structure) | Notes (note) |
| ???N_NEIGHBORS | Indicate this updating message to carry the content of what adjacent base stations |
| ???For(j＝0；j＜ | |
| N_NEIGHBORS；j++){ | |
| ?... | |
| ??????BS?Type | The indication base station type, wherein, 0 represents macro base station, little base station or little base station, and 1 represents sub-base stations |
| ??????BS_ID | Base Station Identification |
| ??????PHY?Profile?ID | The physical layer configurations information of base station |
| ??????MAC?Version?ID | The MAC layer version number of base station institute use agreement |
| ??????FAIndex | The employed carrier frequency information in base station |
| ??????Preamble?Index | Targeting sequencing (synchronizing sequence) index |
| ?... | |
| If(BS?Type＝＝1){ | |
| ???????CSG_Type | Sub-base stations is proprietary/open sign |
| ???????Status | The sub-base stations state |
| ???????BCH?Offset | Sub-base stations broadcast channel offset information is a unit with subframe or the OFDM symbol length of stipulating in the IEEE 802.16m standard, and terminal is calculated the position that obtains the CBCH channel based on this value |
| ??????} | |
| ??????... | |
| ????} |
| Syntax (structure) | Notes (note) |
| ????... |
Table 2
| Syntax (structure) | Notes (note) |
| ??Type | Indicate this type of message |
| ??BS?Type | The indication base station type wherein 0 is represented macro base station, little base station or little base station, and 1 represents sub-base stations |
| ??... | |
| ??N_NEIGHBORS | Indicate this updating message to carry the content of what adjacent base stations |
| ??For(j＝0；j＜N_NEIGHBORS；j++){ | |
| ??... | |
| ????BS_ID | Base Station Identification |
| ????PHY?Profile?ID | The physical layer configurations information of base station |
| ????MAC?Version?ID | The MAC layer version number of base station institute use agreement |
| ????FA?Index | The employed carrier frequency information in base station |
| ????Preamble?Index | Targeting sequencing (synchronizing sequence) index |
| ??... | |
| ??If(BS?Type＝＝1){ | |
| ??????CSG_Type | Sub-base stations is proprietary/open sign |
| ??????Status | The sub-base stations state |
| Syntax (structure) | Notes (note) |
| ??????BCH?Offset | Sub-base stations broadcast channel offset information is with IEEE |
| 802.16m subframe of stipulating in the standard or OFDM symbol length are unit, terminal is calculated the position that obtains the CBCH channel based on this value | |
| ???} | |
| ???... | |
| ?} | |
| ?... |
Table 3
| Syntax (structure) | Notes (note) |
| ???... | |
| ???N_FAs | Indicate this message to carry the content of the base station on what carrier frequency |
| ???For(i＝0；i＜N_FAs；i++){ | |
| ?... | |
| ????FA?Index | The employed carrier frequency information in base station |
| ????N_NEIGHBORS | Indicate this message to carry how many individual contents that is in the base station on this carrier frequency |
| ????For(j＝0；j＜N_NEIGHBORS；j++){ | |
| ????... |
| Syntax (structure) | Notes (note) |
| ????BS_INFO | The concrete information of each base station |
| ??????} | |
| ??????... | |
| ????} | |
| ????... |
Table 4
| Syntax (structure) | Notes (note) |
| ??BS?Type | The indication base station type |
| ??FA_Index | Carrier frequency information |
| ??... | |
| ??N_NEIGHBORS | Indicate this updating message to carry the content of the adjacent base station of how many individual this BS Type on the carrier frequency of FA_Index indication |
| ??For(j＝0；j＜N_NEIGHBORS；j++){ | |
| ??... | |
| ?????BS_INFO | The specifying information of each base station |
| ??} | |
| ??... |
Table 5
| Syntax (structure) | Notes (note) |
| ??BS?Type | The indication base station type |
| ??N_FAs | Indicate this message to carry the content of the base station on what carrier frequency |
| ??For(i＝0；i＜N_FAs；i++){ | |
| ????... | |
| ????FA_Index | Carrier frequency information |
| ????... | |
| ????N_NEIGHBORS | Indicate this updating message to carry the content of the adjacent base station of how many individual this BS Type on the carrier frequency of FA_Index indication |
| ????For(j＝0；j＜N_NEIGHBORS；j++){ | |
| ????... | |
| ???????BS_INFO | The specifying information of each base station |
| ???????} | |
| ???????... | |
| ????} | |
| ????... |
When terminal scans, be positioned at grand district and do not have under the situation of concrete neighboring BS information in terminal, terminal elder generation scan sub-base stations to be determining one or more adjacent sub-base stations and to obtain concrete neighboring BS information, and this scanning success afterwards scan sub-base stations to determine to switch or the sub-base stations of network insertion; Be positioned at young district and/or grasp under the situation of concrete neighboring BS information in terminal, the direct scan sub-base stations of terminal is to determine to switch or the sub-base stations of network insertion.
Wherein, the terminal processing of obtaining neighboring BS information can comprise: the base station is that terminal sends the neighboring BS information of sub-base stations and/or the neighboring BS information of large coverage base station on one's own initiative and/or based on terminal request and/or triggering Network Based.
Particularly, the base station is that the processing that terminal sends the neighboring BS information of sub-base stations can comprise: the base station is by backbone network and/or backhaul and/or eat dishes without rice or wine and/or the transmission and/or the forwarding of neighboring BS information are carried out in relay base station and/or other base station.And, when being the neighboring BS information of terminal transmission sub-base stations in the base station, the base station can send the neighboring BS information of distributing rationally according to the adjacency in the geographical position of the behavior pattern of one or more terminals and/or terminal, wherein, the behavior pattern of one or more terminals comprises Move Mode and/or use pattern.
Alternatively, the neighboring BS information that obtains from serving BS that uses when carrying out initialization scan can be by terminal in advance to the serving BS acquisition request, also can initiatively send to terminal by serving BS, in addition, serving BS can also triggering Network Based be the neighboring BS information that terminal sends sub-base stations.The mode that the base station sends neighboring BS information can comprise following one of at least: broadcasting, multicast, clean culture.And the neighboring BS information that obtains in advance can comprise the neighboring BS information of the summary that macro base station provides for terminal.
The base station is that the operation that terminal sends the neighboring BS information of sub-base stations further comprises: the base station is the neighboring BS information that terminal sends the sub-base stations that terminal can insert, wherein, the neighboring BS information of terminal or the set of terminal sub-base stations that can insert comprises the neighboring BS information of open sub-base stations and to the neighboring BS information of the proprietary sub-base stations of terminal or set of terminal mandate.
Particularly, the base station be operation that terminal sends the neighboring BS information of sub-base stations further comprise following one of at least: the neighboring BS information of the sub-base stations that base station broadcast is open; The neighboring BS information of the sub-base stations that base station clean culture or multi-cast terminal or set of terminal can insert.
When carrying out initialization scan, terminal and alternative sub-base stations carry out down-going synchronous, and understand the broadcast message of alternative sub-base stations.And in the process of scanning, terminal can be finished initialization scan is reported in result from the back to serving BS in prepause of initialization scan or initialization scan.
Preferably, at terminal to scan sub-base stations when determining one or more adjacent sub-base stations, terminal is obtained concrete neighboring BS information to ask concrete neighboring BS information or terminal from scanning definite adjacent sub-base stations to result's report and/or the request message that serving BS sends scanning on one's own initiative or based on the indication of serving BS on one's own initiative or after at least one adjacent sub-base stations has been determined in scanning or based on the indication of serving BS.
Preferably, in the process of carrying out initialization scan, the terminal utilization scans from the neighboring BS information that serving BS obtains in advance, and can ask serving BS that new neighboring BS information further is provided, get access to concrete neighboring BS information or determined that at least one adjacent sub-base stations is as alternative sub-base stations from serving BS or alternative sub-base stations until terminal.
After having carried out initialization scan, terminal can send a request message to ask serving BS that concrete neighboring BS information further is provided to serving BS before carrying out specific aim scanning, this neighboring BS information may be the concrete neighboring BS information that alternative sub-base stations that initialization scan is determined is handled, and may be the concrete neighboring BS information that the alternative sub-base stations be scheduled to is handled.
Preferably, result's report and/or request message can comprise the signal strength information that scans definite all or part of adjacent sub-base stations information and/or adjacent sub-base stations or scan the strongest sub-base stations information and/or its signal strength information of signal strength signal intensity in the adjacent sub-base stations of determining.
Terminal has sent after the request message, further comprises: serving BS will receive this request message; At this moment, the concrete neighboring BS information that serving BS may directly be handled the alternative sub-base stations of notice in request message and/or the result's report sends to terminal (if this information has retention at serving BS), serving BS also may be according to request message to the concrete neighboring BS information of corresponding sub-base stations request, and the concrete neighboring BS information that request obtains is transmitted to terminal, perhaps serving BS is reported to the concrete neighboring BS information of corresponding sub-base stations request according to request message and/or result, and sends to terminal by corresponding sub-base stations.
And, in terminal after serving BS sends result's report and/or request message of scanning, serving BS can utilize the locating terminal as a result of terminal scanning and/or distribute rationally in view of the above send to terminal neighboring BS information (for example, when terminal is positioned at the sub-base stations area of coverage, serving BS also in view of the above locating terminal and/or distribute the neighboring BS information that sends to terminal rationally).
When terminal is carried out specific aim scanning, terminal can be carried out channel quality measurement to the adjacent sub-base stations of the concrete neighboring BS information correspondence of the alternative sub-base stations determined and/or definite alternative sub-base stations or predetermined alternative sub-base stations, determine between terminal and the alternative sub-base stations of determining and and adjacent sub-base stations between or and the alternative sub-base stations be scheduled between channel quality information.
In carrying out the process of specific aim scanning, the concrete neighboring BS information that terminal can provide concrete neighboring BS information that definite alternative sub-base stations handles or predetermined alternative sub-base stations to handle to the serving BS request.And, terminal can be in carrying out the process of specific aim scanning or specific aim scanning finish the result that the back is scanned to the serving base stations report specific aim.The result of terminal to report specific aim scanning further comprises:
The report of serving BS reception result;
Serving BS is reported the sub-base stations of determining that needs switch according to the result, and initiates switching flow.
The processing that terminal is carried out specific aim scanning further comprises:
Determined that in terminal terminal is initiated switching flow under the situation of the sub-base stations that need switch (also can be when terminal has been found to switch to the chance of adjacent sub-base stations).
Preferably, when scanning, can ignore the information of status indicator for the sub-base stations that can not insert, the type identification that also can ignore the uncommitted access of terminal is the information of proprietary sub-base stations, promptly, for there not being ability to continue to admit terminal or do not allow to admit the sub-base stations of terminal not scan, scan shared expense thereby further save.
By above-mentioned processing, can solve the problem that the base station scans time is long in the correlation technique, expense is big, effectively reduce the amount of information of terminal each scanning when carrying out base station scans, thereby reduce delayed sweep and scanning expense.
Below in conjunction with the method for base-station scanning of instantiation description according to present embodiment.
Figure 12 is the flow chart according to the adjacent sub-base stations of terminal scanning in the young district in the method for base-station scanning of present embodiment.As shown in figure 12, specifically comprise following processing:
Step 1201, terminal be from obtaining the specifying information of adjacent sub-base stations for the sub-base stations of its service, comprise the carrier frequency, Base Station Identification number of adjacent sub-base stations, leading feature etc., also comprises the type information and the state information of adjacent sub-base stations.
The adjacent sub-base stations specifying information that step 1202, terminal utilization are obtained carries out specific aim scanning to search the switching machine meeting.
Further specify processing shown in Figure 12 below in conjunction with example 11.
Example 11
In this example, suppose that terminal is positioned at the area of coverage of certain sub-base stations, and terminal can obtain the specifying information of adjacent sub-base stations from the sub-base stations of service, terminal can also be to these information of sub-base stations request, and sub-base stations also can directly send these information.Wherein, sub-base stations can send the specifying information of adjacent sub-base stations by the mode of clean culture, multicast or broadcasting, these information comprise the carrier frequency, Base Station Identification number of adjacent sub-base stations, leading feature, physical layer and medium access control system (Media Access Control, abbreviate MAC as) layer configuration information, also comprise the type information and the state information of adjacent sub-base stations.After getting access to the specifying information of adjacent sub-base stations, terminal can begin to scan pointedly to these sub-base stations, measures from the signal quality of these sub-base stations possible to find potential switching.But terminal should avoid the proprietary sub-base stations of Xiang Feiqi affiliated (promptly uncommitted) or status indicator to initiate scanning for the sub-base stations that can not insert.Terminal can be after specific aim scanning regularly or the result that will scan aperiodically report sub-base stations.When some specific principle (as threshold value, annoyance level, the policy of operator, cell flow load, the service quality of signal strength signal intensity) when being satisfied, when finding that when terminal signal from adjacent sub-base stations is better than the sub-base stations of service, terminal may be initiated to switch.
Figure 13 is the flow chart of the terminal to scan sub-base stations in the grand district in the method for base-station scanning according to present embodiment.As shown in figure 13, concrete steps comprise:
The adjacent sub-base stations specifying information that step 1303, terminal utilization are obtained carries out specific aim scanning to search the switching machine meeting.
Further specify processing shown in Figure 13 below in conjunction with example 12.
Example 12
Suppose that present terminal is positioned at the macro base station area of coverage, terminal can be obtained public information, appointed information or the common information of the sub-base stations in the grand district from macro base station.The mode that terminal is obtained these information can be broadcasting, multicast or clean culture.After terminal was taken these information, terminal just can utilize these information to begin initialization scan.In initialization scan, terminal attempts carrying out down-going synchronous and broadcast channel decoding with near sub-base stations.Like this, terminal just can be determined near some or certain some sub-base stations that it is and obtain their adjacent sub-base stations specifying information from the broadcast message of this or these sub-base stations.Terminal also may need to scan this sub-base stations over time once more to obtain adjacent sub-base stations specifying information from broadcast channel according to the indication information in the broadcast channel.Obtain after the specifying information of adjacent sub-base stations, terminal just can begin to scan pointedly these adjacent sub-base stations, measures the radio signal quality from adjacent sub-base stations, to find potential switching machine meeting.
Figure 14 is the terminal to scan sub-base stations in the grand district and seek the flow chart that assist the base station in the method for base-station scanning according to present embodiment.As shown in figure 14, specifically can comprise following processing:
Step 1401, terminal is from obtaining public information, appointed information or the common information of the sub-base stations in the grand district for the macro base station of its service.
The sub-base stations information that step 1402, terminal utilization are obtained is carried out initialization scan to determine at least one adjacent sub-base stations.
Step 1403, the terminal request serving base station is assisted to obtain the specifying information of adjacent sub-base stations.
The adjacent sub-base stations specifying information that step 1404, terminal utilization are obtained carries out specific aim scanning to search the switching machine meeting.
Further specify processing shown in Figure 9 below in conjunction with example 13 to example 16.
Example 13
In this example, suppose that present terminal is positioned at the macro base station area of coverage, terminal can be obtained public information, appointed information or the common information of the sub-base stations in the grand district from macro base station.Wherein, to obtain the mode of these information can be broadcasting, multicast or clean culture to terminal.After terminal was taken these information, terminal just can utilize these information to begin initialization scan.In initialization scan, terminal attempts carrying out down-going synchronous and broadcast channel decoding with near sub-base stations.Like this, terminal may can be determined the sub-base stations that at least one is adjacent.If (terminal be can not determine the sub-base stations that any one is adjacent, explanation does not exist the not serviced base station of information of the sub-base stations of sub-base stations or existence to provide at adjacent area, so terminal may be carried out initialization scan over time again or the request serving BS further provides new neighboring BS information to continue or to carry out again initialization scan.) afterwards terminal may seek the assistance of serving base station to obtain the specifying information of more heterogeneous adjacent sub-base stations.Three kinds of flow processs that terminal is sought the assistance of serving BS describe in detail in example 14 (Figure 15), example 15 (Figure 16) and example 16 (Figure 17).Obtain after the specifying information of adjacent sub-base stations, terminal just can begin to scan pointedly these adjacent sub-base stations, measures the radio signal quality from adjacent sub-base stations, to find potential switching machine meeting.
Figure 15 seeks the flow chart that assist the base station, the base station is directly responded according to terminal in the method for base-station scanning of present embodiment.As shown in figure 15, specifically comprise following processing:
Further specify processing shown in Figure 15 below in conjunction with example 14.
Example 14
In this example, suppose in the present grand district of terminal that terminal can be sought further assistance to the macro base station of service, and terminal can send concrete neighboring BS information request to the macro base station of service by eating dishes without rice or wine.In request message, the information of the adjacent sub-base stations of having determined by initialization scan on terminal is subsidiary, for example, the carrier frequency of adjacent sub-base stations, Base Station Identification number, leading, the signal strength signal intensity of the adjacent sub-base stations that measures etc.Serving base station receives that the request back directly sends the specifying information of other sub-base stations adjacent with fixed adjacent sub-base stations to terminal.Terminal just can utilize these specifying informations to begin specific aim scanning like this.
Figure 16 seeks the flow chart that assist the base station, transmit the base station, adjacent sub-base stations is responded according to terminal in the method for base-station scanning of present embodiment.As shown in figure 16, specifically comprise following processing:
Further specify processing shown in Figure 16 below in conjunction with example 15.
Example 15
Suppose in the present grand district of terminal that terminal can be sought further assistance to the macro base station of service.Terminal can send concrete neighboring BS information request to the macro base station of service by eating dishes without rice or wine.In request message, the information of the adjacent sub-base stations of having determined by initialization scan on terminal is subsidiary, for example, the carrier frequency of adjacent sub-base stations, Base Station Identification number, leading, the signal strength signal intensity of the adjacent sub-base stations that measures etc.If serving base station receives that the discovery of request back does not have the information of terminal request, then can transmit the neighboring BS information request to fixed adjacent sub-base stations.The base station request of transmitting may be passed through backbone network (backbone), backhaul (backhaul), and eat dishes without rice or wine (air interface), relay base station (Relay Station) and/or other channel send.Adjacent sub-base stations may directly send concrete neighboring BS information to terminal after receiving the request of forwarding by eating dishes without rice or wine.Terminal just can utilize these specifying informations to begin specific aim scanning like this.
Figure 17 seeks the flow chart that assist the base station, transmit the base station, adjacent sub-base stations sends, transmit the base station again according to terminal in the method for base-station scanning of present embodiment.As shown in figure 17, specifically can comprise following processing:
Further specify processing shown in Figure 17 below in conjunction with example 16.
Example 16
Suppose in the present grand district of terminal that terminal can be sought further assistance to the macro base station of service.Terminal can send concrete neighboring BS information request to the macro base station of service by eating dishes without rice or wine.In request message, the information of the adjacent sub-base stations of having determined by initialization scan on terminal is subsidiary, for example, the carrier frequency of adjacent sub-base stations, Base Station Identification number, leading, the signal strength signal intensity of the adjacent sub-base stations that measures etc.If serving base station receives that the discovery of request back does not have the information of terminal request, then can transmit the neighboring BS information request to fixed adjacent sub-base stations.The base station request of transmitting may be passed through backbone network (backbone), backhaul (backhaul), and eat dishes without rice or wine (air interface), relay base station (Relay Station) and/or other channel send.Adjacent sub-base stations may send concrete neighboring BS information to serving base station after receiving the request of forwarding.Serving base station is transmitted concrete neighboring BS information again and is given terminal by eating dishes without rice or wine then.Terminal just can utilize these specifying informations to begin specific aim scanning like this.
Device embodiment one
In the present embodiment, provide a kind of terminal, this terminal can be carried out base station scans according to above-mentioned method for base-station scanning in system shown in Figure 1.
As shown in figure 18, the terminal according to present embodiment comprises first scan module 10 and second scan module 20.
The function of each module is as follows among Figure 18:
Figure 19 is the block diagram according to the preferred structure of the terminal of present embodiment.As shown in figure 19, on the basis of structure shown in Figure 180, this terminal can further include: switch or network insertion initiation module 30, be used for second scan module 20 determined to switch or the situation of the sub-base stations of network insertion under initiate to switch or the network insertion flow process.
This terminal can be carried out base station scans according to the flow process shown in Figure 11 to 17, and its concrete processing procedure no longer repeats here.
Device embodiment two
In the present embodiment, provide a kind of base station.
As shown in figure 20, the base station according to present embodiment comprises: neighboring BS information sending module 40 and switching or network insertion initiation module 50.
Neighboring BS information sending module 40 is used on one's own initiative or sends neighboring BS information to terminal in response to the request message of terminal or triggering Network Based; Wherein, neighboring BS information can comprise the neighboring BS information of summary and/or concrete neighboring BS information, and the neighboring BS information of summary comprises appointed information and/or public information.This neighboring BS information has been described in detail in said method embodiment, does not repeat them here.
Switch or network insertion initiation module 50, be used for reporting that according to the result of terminal to scan sub-base stations definite terminal needs switch or the sub-base stations and the initiation of network insertion are switched or the network insertion flow process.
In sum, by means of technical scheme of the present invention, by the distributed layering of neighboring BS information is handled, solved scanning in the correlation technique with insert non-under it proprietary sub-base stations or sub-base stations or non-conterminous sub-base stations caused meaningless the communication and the problem of overhead that can not support that more users insert, improve the wireless communication system performance of handoffs, reduced the communication and the terminal overheads of system.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (42)
1. the method for a terminal to scan sub-base stations is characterized in that, described method comprises:
Described terminal to scan sub-base stations to be determining one or more adjacent sub-base stations, and/or obtains neighboring BS information; And/or
Described terminal to scan sub-base stations is to determine to switch or the sub-base stations of network insertion.
2. method according to claim 1 is characterized in that, before the described sub-base stations of described terminal scanning, described method also comprises:
The base station sends described neighboring BS information to described terminal, so that described terminal scans described sub-base stations according to described neighboring BS information, wherein, described neighboring BS information comprises the neighboring BS information of summary and/or concrete neighboring BS information, and the neighboring BS information of described summary comprises appointed information and/or public information.
3. method according to claim 2, it is characterized in that, described appointed information comprises the division information of carrier frequency and/or leading division information, and wherein, division information is base station and the carrier frequency and/or the leading corresponding relation of various types of base stations and/or various networking types.
4. method according to claim 3, it is characterized in that, described leading division information comprises the division information of auxilliary targeting sequencing, and wherein, the division information of described auxilliary targeting sequencing is represented the base station of dissimilar and/or networking type and the corresponding relation of auxilliary targeting sequencing.
5. method according to claim 4 is characterized in that, determines that the base station of various types of base stations and/or various networking types and the corresponding relation of auxilliary targeting sequencing comprise:
Allocate whole auxilliary targeting sequencings in advance according to the base station of various types of base stations and/or various networking types; Or,
Allocate the auxilliary targeting sequencing of part in advance according to the base station of various types of base stations and/or various networking types.
6. method according to claim 5 is characterized in that, under the situation of the auxilliary targeting sequencing of allocating part according to the base station of various types of base stations and/or various networking types in advance, described method also comprises:
Various types of base stations and/or the base station of various networking types and the corresponding relation of described auxilliary targeting sequencing of described terminal by obtaining from described base station, and obtain the corresponding relation of the base station of whole auxilliary targeting sequencings and various types of base station and/or various networking types in conjunction with above-mentioned pre-assigned auxilliary targeting sequencing.
7. method according to claim 5 is characterized in that, under the situation of the auxilliary targeting sequencing of allocating part according to the base station of various types of base stations and/or various networking types in advance, described method also comprises:
Do not carry the described corresponding relation of allocating the base station of auxilliary targeting sequencing partly and various types of base station and/or various networking types in advance in the described idle message; And/or,
Carry the corresponding relation of the base station of whole auxilliary targeting sequencings and various types of base station and/or various networking types in the described idle message; And/or,
Do not carry the described corresponding relation of allocating the base station of auxilliary targeting sequencing partly and various types of base station and/or various networking types in advance in the described idle message, and, carry corresponding relation in the described idle message except the base station of the described auxilliary targeting sequencing of other parts of allocating part in advance and various types of base station and/or various networking types.
8. method according to claim 2 is characterized in that, after described terminal sent described neighboring BS information, described method also comprised in the base station:
Described terminal scans described sub-base stations according to appointed information in the described neighboring BS information and/or public information, to find the sub-base stations of all or specific networking type.
9. method according to claim 2 is characterized in that, also comprises:
Described sub-base stations obtains the appointed information in the described neighboring BS information, and information and/or public information are carried out initialization scan according to a preconcerted arrangement, to find adjacent sub-base stations.
10. method according to claim 5 is characterized in that, under the situation that described terminal initial network enters, described method also comprises:
Described terminal is selected the base station of the type of described pre-assigned auxilliary targeting sequencing correspondence according to pre-assigned auxilliary targeting sequencing.
11. method according to claim 2, it is characterized in that, described concrete neighboring BS information comprise following one of at least: the quantity information of the adjacent sub-base stations of serving BS, the specifying information of the adjacent sub-base stations of some, wherein, the specifying information of each adjacent sub-base stations comprises the carrier frequency that this sub-base stations uses, the identification number of this sub-base stations, the preface information of this sub-base stations, the type information of this sub-base stations, the state information of this sub-base stations, the physical layer configurations information of this sub-base stations, the medium access control preparative layer configuration information of this sub-base stations, wherein, described type information comprises proprietary sign or open sign, and/or described type information is contained in Base Station Identification number and/or in leading; Described state information comprises that can insert sign maybe can not insert sign, and/or comprises the low power consumpting state sign.
12. according to each described method in the claim 2 to 11, it is characterized in that, described public information comprises the distribution characteristics of the carrier frequency that described sub-base stations uses and/or leading distribution characteristics, wherein, whether the distribution characteristics of described carrier frequency is for existing described sub-base stations on all or the predetermined carrier frequency and/or using the number of the sub-base stations of described predetermined carrier frequency; Described leading distribution characteristics is the number that is distributed in the sub-base stations in predetermined preambles interval, and/or the interval range of the leading distribution of sub-base stations.
13. method according to claim 1 is characterized in that, described terminal to scan sub-base stations comprises with the operation of determining described one or more adjacent sub-base stations:
Described terminal according to its neighboring BS information that obtains in advance from serving BS to determine described one or more adjacent sub-base stations.
14. method according to claim 1 is characterized in that, described terminal to scan sub-base stations is to determine to switch or the operation of the sub-base stations of network insertion comprises:
Described terminal according to concrete neighboring BS information scan sub-base stations to determine to switch or the sub-base stations of network insertion, wherein, described concrete neighboring BS information comprises the concrete neighboring BS information of concrete neighboring BS information that described previous stage, scanning was obtained or predetermined adjacent sub-base stations.
15. method according to claim 1 is characterized in that, the operation that described terminal is carried out the scanning of described sub-base stations comprises:
Described terminal scans the large coverage base station during sub-base stations is scanned and/or intermittently, and wherein, described large coverage base station comprises macro base station, little base station and little base station.
16. method according to claim 1 is characterized in that, the operation that described terminal is carried out described sub-base stations scanning comprises:
Be positioned at grand district and do not have under the situation of concrete neighboring BS information in described terminal, described terminal elder generation scan sub-base stations to be determining one or more adjacent sub-base stations and to obtain concrete neighboring BS information, and this scanning success afterwards scan sub-base stations to determine to switch or the sub-base stations of network insertion;
Be positioned at young district and/or grasp under the situation of concrete neighboring BS information in described terminal, the direct scan sub-base stations of described terminal is to determine to switch or the sub-base stations of network insertion.
17. method according to claim 2 is characterized in that, the operation that described terminal is obtained neighboring BS information further comprises:
Described base station is that described terminal sends the neighboring BS information of sub-base stations and/or the neighboring BS information of large coverage base station on one's own initiative and/or based on terminal request and/or triggering Network Based.
18. method according to claim 17 is characterized in that, described base station is that the operation of the neighboring BS information of described terminal transmission sub-base stations further comprises:
Described base station is by backbone network and/or backhaul and/or eat dishes without rice or wine and/or the transmission and/or the forwarding of neighboring BS information are carried out in relay base station and/or other base station.
19. method according to claim 17 is characterized in that, described base station is that the operation of the neighboring BS information of described terminal transmission sub-base stations further comprises:
Described base station is the neighboring BS information that described terminal sends the sub-base stations that described terminal can insert, wherein, the neighboring BS information of described terminal or the set of terminal sub-base stations that can insert comprises the neighboring BS information of open sub-base stations and to the neighboring BS information of the proprietary sub-base stations of terminal or set of terminal mandate.
20. method according to claim 17 is characterized in that, described base station be operation that described terminal sends the neighboring BS information of sub-base stations further comprise following one of at least:
The neighboring BS information of the sub-base stations that described base station broadcast is open;
The neighboring BS information of the sub-base stations that clean culture of described base station or multi-cast terminal or set of terminal can insert.
21., it is characterized in that according to claim 17,19 or 20 described methods, be under the situation of macro base station at described serving BS, neighboring BS information and/or the clean culture or the concrete neighboring BS information of multicast of described serving BS broadcasting summary; At described serving BS is under the situation of sub-base stations, described sub-base stations broadcasting, multicast or the concrete neighboring BS information of clean culture.
22. method according to claim 17 is characterized in that, described base station be operation that described terminal sends the neighboring BS information of sub-base stations comprise following one of at least:
Described base station when netinit by backbone network and/or backhaul and/or eat dishes without rice or wine and/or relay base station is collected and generate neighboring BS information;
Described base station generates neighboring BS information based on the positioning function of navigation system and/or cable;
Described base station is based on the scanning between the base station and/or measure the generation neighboring BS information;
Described base station generates neighboring BS information based on the information interaction between the information interaction between terminal and base station and/or base station and base station;
Described base station from core net and/or other base stations and/or terminal obtain and generate neighboring BS information.
23. method according to claim 17 is characterized in that, the base station is that the operation of the neighboring BS information of described terminal transmission sub-base stations comprises:
Described base station sends the neighboring BS information of distributing rationally according to the adjacency in the geographical position of the behavior pattern of one or more terminals and/or described terminal, wherein, the behavior pattern of described one or more terminals comprises Move Mode and/or use pattern, described use pattern comprise following one of at least: terminal list, the terminal that the mandate correspondence relationship information of described terminal and proprietary sub-base stations, proprietary sub-base stations mandate can insert can be authorized the proprietary sub-base stations tabulation of access.
24. method according to claim 21, it is characterized in that, the neighboring BS information of described summary comprise following one of at least: the common information of all or part of sub-base stations in the public information of all or part of sub-base stations, the described serving BS coverage in the appointed information in described serving BS and its coverage between all or part of sub-base stations, the described serving BS coverage, wherein, described part sub-base stations comprises the sub-base stations adjacent with described terminal.
25. according to claim 21 or 24 described methods, it is characterized in that, described summary info comprises the employed communication feature information of sub-base stations in the described serving BS area of coverage, wherein, described communication feature information comprise following one of at least: the Cell Identity CI of carrier frequency information, preface information, carrier frequency distribution situation information, leading distribution characteristics information, reservation.
26. method according to claim 22, it is characterized in that, the Move Mode of described terminal comprises: terminal moves/switches to the probability of each adjacent sub-base stations from serving BS, and/or terminal moves/switches to the probability of adjacent open sub-base stations from serving BS, and/or the terminal that obtains insertion authority moves/switch to the probability of adjacent proprietary sub-base stations from serving BS.
27. method according to claim 22 is characterized in that, described base station sends before the neighboring BS information of distributing rationally according to the adjacency in the geographical position of the behavior pattern of one or more terminals and/or described terminal, further comprises:
Described base station from described terminal and/or adjacent base station and/or core net collect that terminal moves and/or the history information that switches to generate the behavior pattern information of terminal.
28. method according to claim 1 is characterized in that, described terminal to scan sub-base stations further comprises with the processing of determining one or more adjacent sub-base stations:
Described terminal is carried out down-going synchronous with corresponding sub-base stations, and understands the broadcast message of this sub-base stations;
Understand under the case of successful in down-going synchronous and broadcast message, this sub-base stations is defined as described adjacent sub-base stations.
29. method according to claim 1 is characterized in that, described terminal to scan sub-base stations further comprises to determine the processing of described one or more adjacent sub-base stations:
Described terminal is on one's own initiative or after at least one adjacent sub-base stations has been determined in scanning or based on the indication of serving BS, the result's report from scanning to described serving BS and/or the request message that send obtain concrete neighboring BS information with the adjacent sub-base stations of asking concrete neighboring BS information or described terminal to be determined from described scanning.
30. method according to claim 29, it is characterized in that described result report and/or request message comprise the strongest sub-base stations information and/or its signal strength information of signal strength signal intensity in the signal strength information of all or part of described adjacent sub-base stations information that described scanning is determined and/or described adjacent sub-base stations or the adjacent sub-base stations that described scanning is determined.
31., it is characterized in that described terminal further comprises according to claim 28 or 29 described methods after described serving BS sends result's report and/or request message of scanning:
Described serving BS utilizes the result of described terminal scanning to locate described terminal and/or distributes the neighboring BS information that sends to described terminal in view of the above rationally.
32. method according to claim 1 is characterized in that, described terminal to scan sub-base stations is to determine to switch or the processing of the sub-base stations of network insertion further comprises:
Described terminal is to scanning all or part of channel quality measurement that carries out of definite adjacent sub-base stations and/or the described concrete pairing adjacent sub-base stations of neighboring BS information, to obtain scanning result, wherein, described scanning result comprises the channel quality information between described terminal and the described adjacent sub-base stations.
33. method according to claim 1 is characterized in that, described terminal to scan sub-base stations is to determine to switch or the processing of the sub-base stations of network insertion further comprises:
Described terminal in the process of carrying out described scanning or described scanning finish after on one's own initiative or based on the indication of serving BS result to the described scanning of described serving base stations report.
34. method according to claim 32 is characterized in that, after the result of the described scanning of described terminal to report, further comprises:
Described serving BS receives the result of the described scanning of described terminal to report;
Described serving BS determines that according to the result of described scanning described terminal needs switch or the sub-base stations of network insertion, and initiates to switch or the network insertion flow process.
35. method according to claim 1 is characterized in that, described terminal to scan sub-base stations is to determine to switch or the processing of the sub-base stations of network insertion further comprises:
Described terminal determined according to described scanning result that needs switch or the situation of the sub-base stations of network insertion under, described terminal is initiated to switch or the network insertion flow process.
36., it is characterized in that described neighboring BS information comprises with neighboring BS information and scans indication accordingly according to each described method in the claim 1 to 11,13 to 20,21 to 29,31 to 34.
37. according to each described method in the claim 1 to 11,13 to 20,21 to 29,31 to 34, it is characterized in that described neighboring BS information comprises the neighboring BS information that is used to switch, or be used for the information of network insertion.
38. a terminal is characterized in that, comprising:
First scan module is used for according to the neighboring BS information scan sub-base stations of summary to determine one or more adjacent sub-base stations and/or to obtain neighboring BS information;
Second scan module is used for according to concrete neighboring BS information scan sub-base stations to determine that described terminal is switched or the sub-base stations of network insertion.
39. according to the described terminal of claim 38, it is characterized in that, further comprise:
Switch or the network insertion initiation module, be used for described second scan module determined to switch or the situation of the sub-base stations of network insertion under initiate to switch or the network insertion flow process.
40. a base station is characterized in that, comprising:
The neighboring BS information sending module is used on one's own initiative or sends neighboring BS information to described terminal in response to the request message of terminal or triggering Network Based;
Switch or the network insertion initiation module, be used for result according to the sub-base stations of switching of determining of described terminal to scan sub-base stations or network insertion and report and determine that described terminal needs switch or the sub-base stations of network insertion and initiate to switch or the network insertion flow process.
41. according to the described base station of claim 40, it is characterized in that, the described neighboring BS information that described neighboring BS information sending module sends comprises the neighboring BS information of summary and/or concrete neighboring BS information, and the neighboring BS information of described summary comprises appointed information and/or public information.
42. a wireless communication system is characterized in that, comprising:
At least one large coverage base station is used to send its neighboring BS information summary and/or concrete of sub-base stations in overlay area separately, wherein, described large coverage base station comprise in macro base station, little base station and the little base station one of at least;
At least one sub-base stations is used to send concrete neighboring BS information separately.
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| CN200910171730.7A CN101772101B (en) | 2009-01-05 | 2009-08-28 | Method for terminal to scan sub-base stations, wireless communication system, terminal and base station |
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| CN200910000039.2 | 2009-01-05 | ||
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| CN200910171730.7A CN101772101B (en) | 2009-01-05 | 2009-08-28 | Method for terminal to scan sub-base stations, wireless communication system, terminal and base station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638821A (en) * | 2012-03-23 | 2012-08-15 | 天津大学 | Method for mining move modes of users on basis of mobile phone base station data |
| CN109257782A (en) * | 2018-11-05 | 2019-01-22 | 温州职业技术学院 | A kind of multi-user's switching method of 5G junction network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309499A (en) * | 2007-05-18 | 2008-11-19 | 华为技术有限公司 | Method, terminal and system for implementing cell selection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638821A (en) * | 2012-03-23 | 2012-08-15 | 天津大学 | Method for mining move modes of users on basis of mobile phone base station data |
| CN109257782A (en) * | 2018-11-05 | 2019-01-22 | 温州职业技术学院 | A kind of multi-user's switching method of 5G junction network |
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